Description
Jims Jims, lower valve spring collar set. Chromoly
05-17 Twin Cam A/B (Excl. 16-17 110″ Softail); 04-22 XL Sportster; 08-12 XR1200; 03-10 Buell XB (NU)
Chromoly. Dimensions: .060″ thick, .570″ I.D. and 1.590″ O.D. Jims chromoly steel lower collars are custom machined to prevent harmonic vibrations in the springs caused by the lower collar moving in the head. Compatible with OEM parts